<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--border边框-->
<table border="1">
    <tr><!--table row表示行--> <!--table data表格数据 表示列-->
        <!--colspan跨列-->
        <td colspan="2" align="center">1-1</td><td>1-3</td><td>1-4</td>
    </tr>
    <tr>
        <!--rowspan跨行-->
        <td rowspan="2">2-1</td><td>2-2</td><td>2-3</td><td>2-4</td>
    </tr>
    <tr>
        <td>3-2</td><td>3-3</td><td>3-4</td>
    </tr>
</table>
<table border="1">
    <tr><td colspan="2" align="center">1-1</td>
        <td rowspan="2">1-3</td></tr>
    <tr><td rowspan="2">2-1</td><td>2-2</td></tr>
    <tr><td colspan="2" align="center">3-2</td></tr>
</table>
<table border="1">
    <caption>购物车</caption>
    <tr><!--table head表头 加粗并居中-->
        <th>编号</th><th>名称</th><th>价格</th>
    </tr>
    <tr>
        <td>1</td><td>小米12 pro手机</td><td>5000</td>
    </tr>
    <tr>
        <td>2</td><td>华为60寸电视</td><td>4000</td>
    </tr>
    <tr>
        <td>总价:</td>
        <td colspan="2">9000元</td>
    </tr>
</table>

</body>
</html>